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2 years ago

30 points 1

Mathematics

2 answers:

Alla [95]2 years ago

5 0

Answer:

Multiply both sides by -2 and reverse the inequality symbol.

Step-by-step explanation:

To isolate w, multiply both sides by the reverse of -1/2 (because -1/2*2=1 ), which is -2

When multiplying or dividing by negatives, you must reverse the inequality symbol as well.

harkovskaia [24]2 years ago

3 0

Because the variable is being multiplied by 1/2 Less than a whole number)

You Multiply both sides by -2 and reverse the inequality symbol.

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A triangle with vertices at A(0,0), B(0,4), and C(6,0) is dilated to yield a triangle with vertices at A(0,0), (B(0,10), and C (

dezoksy [38]

The required scale factor for the dialed triangle is given by SF= 6.28

A triangle with vertices at A(0,0), B(0,4), and C(6,0) is dilated to yield a triangle with vertices at A(0,0), (B(0,10), and C (C(15,0).

<h3>What is scale factor?</h3>

The scale factor is defined as the ratio of modified change in length to the original length.

Since, the height and base of the triangle is y coordinate of B and x coordinate of c is given by 4, 6
Area of triangle =1/2(base x height)
= 1/2 (4 x 6)
= 4.8
Similarly, for dilated triangle
Area of dilated triangle = 30

Now, scale factor(SF) = area of dilated triangle \ area of triangle
SF = 30/4.8
SF = 6.25

Thus, the required scale factor is SF = 6.25

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2 years ago

Divide €132 in the ratio 7:4

Anon25 [30]

Answer:92.4

Step-by-step explanation:

4x+7x=132

10x=132

x=132/10

x=13.2

4x=4×13.2

=52.8

5x=7×13.2

=92.4

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3 years ago

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SIZIF [17.4K]

It is C parallelogram and rumbus

5 0

3 years ago

Read 2 more answers

Use this image to classify each pair of lines.

irga5000 [103]

Answer:

Parallel

Step-by-step explanation:

7 0

2 years ago

PLEASE ANSWER FOR BRAINLIEST!!

e-lub [12.9K]

Answer:

mFG = 67r ( Where r is the radius of the circle)

∠ECF = 67°

Step-by-step explanation:

i) m FG

Join CG

∠GCF=67°

(As FG=ED and equal chords subtend equal angle at center)

Now The length of the minor arc is given by the formula

m arc FG =

$\frac {C}{2 \pi} \times 2 \pi r$

∠C=67

m arc FG = $\frac {67}{2 \pi} \times 2 \pi r$

m arc FG = 67r

Where r is the radius of the circle.

2. ∠ECF = 67°

It is because of the rule which says that equal chords subtend equal angle at center

DE = EF

Hence ∠DCE = ∠ECF

7 0

3 years ago